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Spin dynamics of the potassium magnetometer in spin-exchange relaxation free regime |
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| Affiliation: | 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; 2. School of Physical Science and Technology, Yunnan University, Kunming 650091, China |
| Abstract: | The laser-pumped potassium spin-exchange relaxation free (SERF) magnetometer is the most sensitive detector of magnetic field and has many important applications. We present the experimental results of our potassium SERF magnetometer. A pump-probe approach is used to identify the unique spin dynamics of the atomic ensemble in the SERF regime. A single channel sensitivity of 8 f· THz-1/2 is achieved with our SERF magnetometer. |
| Keywords: | Larmor process spin-exchange relaxation free magnetometer atomic magnetometer |
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